EP2561564B1 - Électrolyte imprimable - Google Patents

Électrolyte imprimable Download PDF

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Publication number
EP2561564B1
EP2561564B1 EP11715228.0A EP11715228A EP2561564B1 EP 2561564 B1 EP2561564 B1 EP 2561564B1 EP 11715228 A EP11715228 A EP 11715228A EP 2561564 B1 EP2561564 B1 EP 2561564B1
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EP
European Patent Office
Prior art keywords
printing paste
particles
paste according
fibres
electrolyte layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11715228.0A
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German (de)
English (en)
Other versions
EP2561564A1 (fr
Inventor
Michael Wendler
Martin Krebs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VARTA Microbattery GmbH
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VARTA Microbattery GmbH
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Publication date
Application filed by VARTA Microbattery GmbH filed Critical VARTA Microbattery GmbH
Publication of EP2561564A1 publication Critical patent/EP2561564A1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0414—Methods of deposition of the material by screen printing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/44—Fibrous material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/40—Printed batteries, e.g. thin film batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0085—Immobilising or gelification of electrolyte
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to a printing paste, which finds application in the manufacture of printed batteries, and a method for producing such batteries.
  • Batteries are known in various embodiments.
  • printed batteries for the production of functional parts, in particular the electrodes and / or required interconnects, are printed on a corresponding substrate.
  • printed batteries have a multilayer structure.
  • a printed battery usually comprises two current collector levels, two electrode levels and a separator level. The latter is arranged between the two electrode planes, while the current collectors form the top and the bottom of the battery.
  • a battery with such a structure is for example in the US 4119770 A described.
  • Electrodes are connected to each other via an ion-conductive electrolyte, which may be, for example, a gelatinous zinc chloride paste.
  • an ion-conductive electrolyte which may be, for example, a gelatinous zinc chloride paste.
  • the electrolyte is reinforced and stabilized by a non-woven or net-like material.
  • the Indian WO 2006/105966 A1 The electrolyte described has only the function of providing an ion-conductive connection between oppositely poled electrodes. Spatially, the electrodes are clearly separated, there are no direct points of contact, over which a short circuit could take place. The situation is different for batteries with a stack-like structure, as in the US 4119770 A are described.
  • the separator not only has the task of providing an ion-conductive connection between oppositely poled electrodes, just as important is its function of spatially separating the electrodes in order to prevent an electrical short circuit.
  • separators for example, porous films such as those in the US 4119770 A used cellophane film for use.
  • at least one nonwoven or net-like release layer, as used in the WO 2006/105966 A1 is mentioned as a mechanical reinforcement between the electrodes.
  • separators for electrochemical cells which ensure cell safety even at temperatures above 150 ° C.
  • separators comprise at least one electrically non-conductive safety resin, aluminum fibers and optionally a binder.
  • a thin layer is formed from a slurry containing the aluminum fibers on a substrate and dried.
  • a printing paste for producing a manganese dioxide-based cathode layer is known.
  • this includes water together with a conductive salt dissolved in it.
  • the present invention has for its object to provide a technical solution that allows printed batteries easier and cheaper to manufacture.
  • a printing paste according to the invention it is possible to apply electrolyte layers for printed batteries without problems via a printing process.
  • the connection opposite polarized electrodes in a separate step for example, by placing a Folienseparators, can be completely eliminated.
  • a multi-layered battery are produced in one operation by first applied to a substrate, a first electrode by pressure, this electrode is then overprinted with the printing paste according to the invention to form an electrolyte layer to finally alsschudrucken a second electrode opposite to the first electrode polarized thereon.
  • the production of all functional parts of a battery can thus take place within the framework of a uniform printing process. The benefits are obvious.
  • a printing paste according to the invention always comprises a solvent, at least one conducting salt dissolved in the solvent, as well as particles and / or fibers which are at least nearly, preferably completely, insoluble and electrically nonconductive in the solvent at room temperature.
  • the at least one conductive salt takes over the function of the ion conductor, the particles and / or the fibers the function of the spacer.
  • a separator made, for example, of a microporous film or of a nonwoven or of a net which has been impregnated with a solution containing a conductive salt, can be functionally readily replaced by an electrolyte layer which can be prepared from the printing paste according to the invention and which comprises the mentioned particles and / or fibers.
  • the particles and / or fibers contained in the paste according to the invention can form a three-dimensional matrix in the printing process, which gives the resulting electrolyte layer a solid structure and sufficiently high mechanical strength to prevent contacts between oppositely poled electrodes.
  • the particles and / or fibers are electrically non-conductive.
  • they should be chemically stable with respect to the solution of the at least one conducting salt and the solvent, at least at room temperature, especially not or only very slightly dissolve.
  • the particles and / or the fibers are in the printing paste preferably in a proportion of between 1 wt .-% and 95 wt .-%, preferably in a proportion between 10 wt .-% and 95 wt .-%, particularly preferably in one proportion between 10% by weight and 75% by weight, in particular between 10% by weight and 50% by weight. (in each case based on the Total mass of the printing paste including solvent, ie the sum of the mass of the conductive salt, the mass of insoluble particles and / or fibers, the mass of the solvent and optionally the mass of other optional paste ingredients, as they are defined below).
  • the particles and / or fibers in a proportion of at least 35 wt .-%, in particular in a proportion between 35 wt .-% and 95 wt .-%, particularly preferably in a proportion between 35 wt .-% and 75 Wt .-%, contained. It is irrelevant whether only particles or fibers or a mixture of particles and fibers is used.
  • the particles and / or the fibers have an average diameter or, in the case of the fibers, an average length of between 1 ⁇ m and 50 ⁇ m.
  • the printing paste according to the invention is particularly preferably free of particles and / or fibers which have a diameter and / or a length of more than 120 ⁇ m.
  • the maximum diameter and / or the maximum length of the particles and / or fibers contained in the printing paste is 80 ⁇ m. This is due to the fact that the printing paste of the invention is intended in particular for processing by screen printing.
  • Screen printing is known to be a printing process in which printing pastes are pressed by means of a doctor blade through a fine-meshed fabric onto the material to be printed. At those points of the fabric at which no paste is to be printed according to the printed image, the mesh openings of the fabric are rendered opaque by a stencil. On the other hand, the printing paste should be able to penetrate the mesh openings easily. To prevent clogging of the mesh openings, it is recommended that the materials contained in the printing paste be solid components should not exceed a certain maximum size, which should be below the mesh opening width.
  • the particles and / or fibers in the printing paste can basically consist of a wide variety of materials, provided that the above-mentioned requirements (electrically non-conductive properties and insolubility in or chemical resistance to the electrolyte solution) are met. Accordingly, the particles and / or fibers may consist of both an organic and an inorganic solid. For example, it is possible to mix fibers of organic materials with inorganic particles or vice versa.
  • the inorganic solid comprises at least one component from the group with ceramic solids, in water almost or completely insoluble salts, glass, basalt and carbon.
  • ceramic solids is intended to include all solids which may be used to make ceramic products, including siliceous materials such as aluminum silicates, glasses and clay minerals, oxidic raw materials such as titanium dioxide and alumina, and non-oxide materials such as silicon carbide or silicon nitride.
  • the organic solid in a printing paste according to the invention has, in preferred embodiments, at least one component from the group of synthetic plastics, semisynthetic plastics and natural substances.
  • the term "almost or completely insoluble at room temperature” in the context of the present application means that at room temperature in a corresponding solvent there is at most a slight, preferably no, solubility.
  • the solubility of particles and / or fibers which can be used according to the invention, in particular those mentioned In water almost or completely insoluble salts should ideally not exceed the solubility of calcium carbonate in water at room temperature.
  • calcium carbonate is a particularly preferred example of an inorganic solid containing as a component having a spacer function, especially in particulate form in a printing paste according to the invention can be.
  • fiber is to be interpreted in the context of the present application very broad, it should be understood by elongated structures that are very thin in relation to their length.
  • fibers of synthetic polymers such as e.g. Polyamide fibers or polypropylene fibers.
  • fibers of inorganic or organic origin such as glass fibers, ceramic fibers, fibers of carbon or cellulose fibers can be used.
  • the solvent in a printing paste of the invention is water.
  • the conductive salt in a printing paste according to the invention is preferably at least one compound which is soluble at room temperature in the solvent contained in the printing paste according to the invention or which is present in the latter in the form of solvated ions. It preferably comprises at least one component from the group consisting of zinc chloride, potassium hydroxide and sodium hydroxide.
  • conductive salts such as lithium tetrafluoroborate, which are also known in particular from the field of lithium-ion batteries, may optionally also be used as conductive salt in the context of the present invention.
  • the printing paste according to the invention may additionally nor a binder and / or one or more additives.
  • the binder serves in particular to impart better mechanical stability, ideally better mechanical strength and flexibility, to the electrolyte layer which can be produced from the printing paste
  • the additives serve, in particular, to vary the processing properties of the printing paste according to the invention.
  • all additives suitable for printing pastes can be used as additives, for example rheological aids with which the viscosity of the printing paste according to the invention can be adjusted.
  • the binder may be, for example, an organic binder such as carboxymethyl cellulose. Other, possibly also inorganic components such as silicon dioxide are suitable as additives with binding properties.
  • a producible from the printing paste according to the invention battery has an electrolyte layer, in addition to water as the solvent at least one conductive salt dissolved in the solvent, and particles and / or fibers in the solvent at room temperature at least almost, preferably completely, insoluble and are electrically non-conductive.
  • solvent conducting salt and insoluble particles and / or fibers
  • the particles and / or the fibers in the electrolyte layer form a matrix which has sufficiently good separating properties in order to prevent short-circuiting between opposite electrodes on the two sides of the electrolyte layer.
  • the electrolyte layer in the battery preferably has a thickness of between 10 ⁇ m and 500 ⁇ m, in particular between 10 ⁇ m and 100 ⁇ m.
  • the battery has a stack-like structure, for example a structure in which a first electrode is arranged on a substrate, which is at least partially, preferably completely, covered by the electrolyte layer, on which in turn applied to the first electrode oppositely poled second electrode is.
  • Positive and negative electrodes of a battery according to the invention and the electrolyte layer can thus be arranged one above the other in different embodiments in different embodiments.
  • the battery but also a structure like that in the WO2006 / 105966 A1 Have described batteries, ie a structure in which the electrodes are side by side on a flat, electrically non-conductive substrate.
  • the corresponding remarks in the WO 2006/105966 A1 are hereby incorporated by reference into the content of this specification.
  • the battery still has printed conductors, which serve as current conductors or as current collectors.
  • These tracks can be realized in various ways.
  • electrical foils in particular metal foils, as such conductor tracks.
  • the interconnects can also be thin metal layers which can be applied to a substrate by means of a conventional metallization process.
  • the printed conductors can of course also be printed, for example using a paste containing silver particles.
  • the term battery is understood to mean both galvanic single cells and the interconnection of a plurality of preferably identical galvanic single cells.
  • the battery can basically be rechargeable or non-rechargeable. Most preferably, the battery is a zinc-brownstone battery.
  • the battery can be produced by a method according to the invention, which is characterized in that the electrolyte layer is printed from a printing paste according to the invention.
  • the printing of the electrolyte layer preferably takes place by means of a screen printing process.
  • the electrodes separated from the electrolyte layer can also be made by pressure, but need not.
  • a preferred embodiment of a printing paste according to the invention was first prepared.
  • the dissolved zinc chloride should ensure the required ionic conductivity of the electrolyte in the battery according to the invention to be produced.
  • Calcium carbonate is known to be an inorganic solid which is almost insoluble in water at room temperature. In addition, calcium carbonate also has virtually no electrical intrinsic conductivity.
  • the calcium carbonate powder used was about 50% of a Powder with a mean particle size ⁇ 11 ⁇ m and about another 50% from a powder with a mean particle size ⁇ 23 ⁇ m. So it had a bimodal distribution.
  • the silicon dioxide is used in particular for adjusting the viscosity of the paste according to the invention.
  • a zinc anode was overprinted, which, also via a printing process, had been applied to a carrier film on plastic.
  • the resulting electrolyte layer had a thickness of about 50 microns.
  • the carrier film in this case had electrical conductors, which serve to make electrical contact with the battery.
  • a second, same film with a Braunsteinkathode applied thereto was then combined with the first, coated with the electrolyte film. The two films were joined together and sealed.
  • the resulting cell had a voltage of 1.424V.
  • this voltage remained almost constant over a period of 16 days (see Fig. 1 ), which means that the electrolyte has excellent electrical insulating properties. Batteries with such an electrolyte are subject to almost no self-discharge.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Claims (10)

  1. Pâte d'impression pour la fabrication d'une couche électrolytique d'une batterie, comprenant de l'eau en tant que solvant, au moins un sel conducteur dissous dans celle-ci, ainsi que des particules et/ou des fibres, qui sont au moins presque, de préférence entièrement, insolubles dans l'eau à température ambiante et électriquement non conductrices.
  2. Pâte d'impression selon la revendication 1, caractérisée en ce que les particules et/ou les fibres sont contenues dans la pâte d'impression en une proportion comprise entre 1 % en poids et 75 % en poids.
  3. Pâte d'impression selon la revendication 1 ou la revendication 2, caractérisée en ce que les particules et/ou les fibres présentent un diamètre moyen et/ou une longueur moyenne compris entre 1 µm et 50 µm, la pâte étant de préférence exempte de particules et/ou de fibres ayant un diamètre et/ou une longueur > 120 µm, de manière particulièrement préférée > 80 µm.
  4. Pâte d'impression selon l'une quelconque des revendications précédentes, caractérisée en ce que les particules et les fibres sont constituées par un solide organique et/ou inorganique.
  5. Pâte d'impression selon la revendication 4, caractérisée en ce que le solide inorganique comprend au moins un composant du groupe comprenant les solides céramiques, les sels presque ou entièrement insolubles dans l'eau, le verre, le basalte et le carbone.
  6. Pâte d'impression selon la revendication 4, caractérisée en ce que le solide organique comprend au moins un composant du groupe comprenant les plastiques synthétiques, les plastiques semi-synthétiques et les substances naturelles
  7. Pâte d'impression selon l'une quelconque des revendications précédentes, caractérisée en ce que le sel conducteur comprend au moins un composant du groupe comprenant le chlorure de zinc, l'hydroxyde de potassium et l'hydroxyde de sodium.
  8. Pâte d'impression selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle contient au moins un liant et/ou au moins un additif, notamment un additif de rhéologie.
  9. Procédé de fabrication d'une batterie, qui comprend une couche électrolytique, qui comprend en plus de l'eau au moins un sel conducteur dissous dans celle-ci, ainsi que des particules et/ou des fibres, qui sont au moins presque, de préférence entièrement, insolubles dans l'eau à température ambiante et électriquement non conductrices, la couche électrolytique étant imprimée à partir d'une pâte d'impression selon l'une quelconque des revendications 1 à 8, de préférence par un procédé de sérigraphie.
  10. Utilisation d'une pâte d'impression selon l'une quelconque des revendications 1 à 8 pour la fabrication d'une couche électrolytique d'une batterie.
EP11715228.0A 2010-04-20 2011-04-18 Électrolyte imprimable Active EP2561564B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010018071A DE102010018071A1 (de) 2010-04-20 2010-04-20 Druckbarer Elektrolyt
PCT/EP2011/056144 WO2011131627A1 (fr) 2010-04-20 2011-04-18 Électrolyte compressible

Publications (2)

Publication Number Publication Date
EP2561564A1 EP2561564A1 (fr) 2013-02-27
EP2561564B1 true EP2561564B1 (fr) 2019-05-29

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EP11715228.0A Active EP2561564B1 (fr) 2010-04-20 2011-04-18 Électrolyte imprimable

Country Status (3)

Country Link
EP (1) EP2561564B1 (fr)
DE (1) DE102010018071A1 (fr)
WO (1) WO2011131627A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3843187A1 (fr) 2019-12-23 2021-06-30 VARTA Microbattery GmbH Batterie imprimée, étiquette radio et procédé de fabrication
EP3900612A1 (fr) 2020-04-24 2021-10-27 VARTA Microbattery GmbH Plâtre diagnostique
EP4020695A1 (fr) 2020-12-23 2022-06-29 VARTA Microbattery GmbH Procédé et ensemble de fabrication d'une cellule de zinc-pyrolusite, ainsi que cellule fabriquée
EP4047695A1 (fr) 2021-02-23 2022-08-24 VARTA Microbattery GmbH Batterie, étiquette radio et procédé de fabrication
EP4080663A1 (fr) 2021-04-20 2022-10-26 VARTA Microbattery GmbH Procédé et ensemble de fabrication d'une cellule de zinc-pyrolusite, et cellule ainsi fabriquée
WO2022223724A1 (fr) 2021-04-21 2022-10-27 Varta Microbattery Gmbh Procédé et ensemble pour produire une pile leclanché et pile ainsi produite
DE202021105203U1 (de) 2021-09-28 2023-01-03 Varta Microbattery Gmbh Elektrochemische Zink-Braunstein-Zelle mit schichtförmigem Aufbau und Batterie

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DE102011007295A1 (de) 2011-04-13 2012-10-18 Varta Microbattery Gmbh Metall-Luft-Knopfzellen und ihre Herstellung
DE102011007297A1 (de) 2011-04-13 2012-10-18 Varta Microbattery Gmbh Gasdiffusionselektrode, Verfahren zu ihrer Herstellung und ihre Verwendung
DE102011077250A1 (de) 2011-06-09 2012-12-13 Varta Microbattery Gmbh Elektronische Vorrichtung mit Metall-Luft-Zelle
DE102011086899A1 (de) 2011-11-22 2013-05-23 Varta Microbattery Gmbh Gedruckte Batterien
EP2846384B1 (fr) 2013-09-04 2019-03-20 VARTA Microbattery GmbH Cellule électrochimique mince et souple
EP2866285B1 (fr) 2013-10-23 2019-01-16 VARTA Microbattery GmbH Batteries lithium-ion et leur procédé de fabrication
EP2960967B1 (fr) 2014-06-25 2016-11-02 VARTA Microbattery GmbH Procédé de fabrication d'un composite électrodes-électrolyte solide
CN104150915B (zh) * 2014-08-06 2015-08-26 西安交通大学 一种基于水基无机粘结剂的粉末3d打印方法
GB2531588B (en) * 2014-10-23 2021-07-07 Saralon Gmbh Battery and method for the production thereof
DE102016101329A1 (de) 2016-01-26 2017-07-27 Schreiner Group Gmbh & Co. Kg Folienaufbau für eine Batterie zum Verspenden auf einem Rundkörper
DE102016101325A1 (de) 2016-01-26 2017-07-27 Schreiner Group Gmbh & Co. Kg Folienaufbau für eine Batterie zum Verspenden auf einem Rundkörper
EP3813167A1 (fr) 2017-10-25 2021-04-28 VARTA Microbattery GmbH Dispositif d'accumulation d'énergie et procédé de fabrication

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3843187A1 (fr) 2019-12-23 2021-06-30 VARTA Microbattery GmbH Batterie imprimée, étiquette radio et procédé de fabrication
WO2021130345A1 (fr) 2019-12-23 2021-07-01 Varta Microbattery Gmbh Batterie imprimée, étiquette rfid et procédé de fabrication
EP3900612A1 (fr) 2020-04-24 2021-10-27 VARTA Microbattery GmbH Plâtre diagnostique
EP4020695A1 (fr) 2020-12-23 2022-06-29 VARTA Microbattery GmbH Procédé et ensemble de fabrication d'une cellule de zinc-pyrolusite, ainsi que cellule fabriquée
EP4047695A1 (fr) 2021-02-23 2022-08-24 VARTA Microbattery GmbH Batterie, étiquette radio et procédé de fabrication
WO2022179865A1 (fr) 2021-02-23 2022-09-01 Varta Microbattery Gmbh Batterie, étiquette rfid et procédé de fabrication
EP4080663A1 (fr) 2021-04-20 2022-10-26 VARTA Microbattery GmbH Procédé et ensemble de fabrication d'une cellule de zinc-pyrolusite, et cellule ainsi fabriquée
WO2022223592A1 (fr) * 2021-04-20 2022-10-27 Varta Microbattery Gmbh Procédé et ensemble pour produire une pile leclanché et pile ainsi produite
WO2022223724A1 (fr) 2021-04-21 2022-10-27 Varta Microbattery Gmbh Procédé et ensemble pour produire une pile leclanché et pile ainsi produite
DE202021105203U1 (de) 2021-09-28 2023-01-03 Varta Microbattery Gmbh Elektrochemische Zink-Braunstein-Zelle mit schichtförmigem Aufbau und Batterie
WO2023052048A2 (fr) 2021-09-28 2023-04-06 Varta Microbattery Gmbh Pile électrochimique zinc-carbone à structure en couches et batterie

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EP2561564A1 (fr) 2013-02-27
WO2011131627A1 (fr) 2011-10-27
DE102010018071A1 (de) 2011-10-20

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